diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index f6c028058..7b06c6ab5 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,35 +1,7 @@
 ## Validator Changes
 
-* Find value sets on tx server if not tx.fhir.org
-* Do not send Content-Type header with GET requests for tx servers
-* Fix npe validating code system
-* Support discriminator by position
-* Don't check type characteristics for unknown types
-
-## WHO I18n Project
-
-* Fix typos in phrases, and fix up handling of apostrophes in messages without parameters
-* Test and fix for single quote escapes in I18n
-* Create and test transifex configuration
-
-## Rendering Changes
-
-* Fix contact rendering to work properly
-* Fix issue resolving contained resource rendering DiagnosticReports etc
-* Handle case where Contact.value has extensions instead of a string value
-* Render Parameterised types
-* Fix bug with LOINC Code row showing wrongly in Profile Details view
-* Partial implementation of type parameters
-* Fixed rendering of actor-specific obligations, added elementIds to obligation narrative rendering
-* Corrected ObligationsRenderer to handle multiple actors and multiple codes.  Also got obligations with elements to render properly (which means knowing whether you're on a table page or definitions page, what tab you're on, and whether the element for the obligation is in-scope for that tab (so you know whether to hyperlink or not).  Had to make links on the tables point to definitions because table anchors are not unique.
+* no changes
 
 ## Other code changes
 
-* split out Base.canHavePrimitiveValue() from Base.hasPrimitiveValue()
-* Refactor how observation profiles are registered in order to generalise management of extra profiles
-  * Use validation policy to implement Observation profile rules
-  * Rework validation policy management in standalone validator
-* Try deploying javadoc with SNAPSHOT
-* Add utility to unpack the spec.internals file
-* v2 in FHIR tests
-* Fix bug loading language pack NPMs
\ No newline at end of file
+* no changes
\ No newline at end of file
diff --git a/org.hl7.fhir.convertors/pom.xml b/org.hl7.fhir.convertors/pom.xml
index fcebd6951..16b89d10d 100644
--- a/org.hl7.fhir.convertors/pom.xml
+++ b/org.hl7.fhir.convertors/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>6.3.11</version>
+        <version>6.3.12-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/org.hl7.fhir.dstu2/pom.xml b/org.hl7.fhir.dstu2/pom.xml
index 274fff5aa..dad77acac 100644
--- a/org.hl7.fhir.dstu2/pom.xml
+++ b/org.hl7.fhir.dstu2/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>ca.uhn.hapi.fhir</groupId>
 		<artifactId>org.hl7.fhir.core</artifactId>
-		<version>6.3.11</version>
+		<version>6.3.12-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/org.hl7.fhir.dstu2016may/pom.xml b/org.hl7.fhir.dstu2016may/pom.xml
index 09487c8ea..fabefb898 100644
--- a/org.hl7.fhir.dstu2016may/pom.xml
+++ b/org.hl7.fhir.dstu2016may/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>ca.uhn.hapi.fhir</groupId>
 		<artifactId>org.hl7.fhir.core</artifactId>
-		<version>6.3.11</version>
+		<version>6.3.12-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/org.hl7.fhir.dstu3/pom.xml b/org.hl7.fhir.dstu3/pom.xml
index aae53d285..821aa266a 100644
--- a/org.hl7.fhir.dstu3/pom.xml
+++ b/org.hl7.fhir.dstu3/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>6.3.11</version>
+        <version>6.3.12-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/org.hl7.fhir.r4/pom.xml b/org.hl7.fhir.r4/pom.xml
index 17eb52b67..9e9d94405 100644
--- a/org.hl7.fhir.r4/pom.xml
+++ b/org.hl7.fhir.r4/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>ca.uhn.hapi.fhir</groupId>
 		<artifactId>org.hl7.fhir.core</artifactId>
-		<version>6.3.11</version>
+		<version>6.3.12-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/org.hl7.fhir.r4b/pom.xml b/org.hl7.fhir.r4b/pom.xml
index 94b12e9f0..998e4c8c8 100644
--- a/org.hl7.fhir.r4b/pom.xml
+++ b/org.hl7.fhir.r4b/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>ca.uhn.hapi.fhir</groupId>
 		<artifactId>org.hl7.fhir.core</artifactId>
-		<version>6.3.11</version>
+		<version>6.3.12-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/org.hl7.fhir.r5/pom.xml b/org.hl7.fhir.r5/pom.xml
index 9f31e86da..6e3bb6193 100644
--- a/org.hl7.fhir.r5/pom.xml
+++ b/org.hl7.fhir.r5/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>ca.uhn.hapi.fhir</groupId>
 		<artifactId>org.hl7.fhir.core</artifactId>
-		<version>6.3.11</version>
+		<version>6.3.12-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/org.hl7.fhir.report/pom.xml b/org.hl7.fhir.report/pom.xml
index 58eee0d5a..4c1a950b0 100644
--- a/org.hl7.fhir.report/pom.xml
+++ b/org.hl7.fhir.report/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>6.3.11</version>
+        <version>6.3.12-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/org.hl7.fhir.utilities/pom.xml b/org.hl7.fhir.utilities/pom.xml
index 060324cba..e45820a9a 100644
--- a/org.hl7.fhir.utilities/pom.xml
+++ b/org.hl7.fhir.utilities/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>6.3.11</version>
+        <version>6.3.12-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/org.hl7.fhir.validation.cli/pom.xml b/org.hl7.fhir.validation.cli/pom.xml
index 6af172455..08d4d11b7 100644
--- a/org.hl7.fhir.validation.cli/pom.xml
+++ b/org.hl7.fhir.validation.cli/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>6.3.11</version>
+        <version>6.3.12-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/org.hl7.fhir.validation/pom.xml b/org.hl7.fhir.validation/pom.xml
index 4def315fd..38533a588 100644
--- a/org.hl7.fhir.validation/pom.xml
+++ b/org.hl7.fhir.validation/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>6.3.11</version>
+        <version>6.3.12-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pom.xml b/pom.xml
index edb7e3eb1..e79cd85a3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -14,7 +14,7 @@
     HAPI FHIR
     -->
     <artifactId>org.hl7.fhir.core</artifactId>
-    <version>6.3.11</version>
+    <version>6.3.12-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <properties>